An active tagging system using circular polarization modulation

Author

Kossel, M. ; Benedickter, H. ; Baechtold, W.

Author_Institution

Lab. for Electromagn. Fields & Microwave Electron., Fed. Inst. of Technol., Zurich, Switzerland

Volume

4

fYear

1999

fDate

13-19 June 1999

Firstpage

1595

Abstract

An active read/write microwave tagging system using circular polarization modulation as a novel modulation scheme for RFID systems to reduce demodulation complexity and power consumption on the battery powered tag is presented. Additional coding of the circular polarization modulated data reduces transmission errors due to polarization inversion at multipath propagation.

Keywords

antenna radiation patterns; computational complexity; demodulation; electromagnetic wave polarisation; identification technology; microstrip antennas; mobile antennas; modulation coding; multipath channels; radio links; 2.4 GHz; RFID systems; UHF; active read/write microwave tagging system; active tagging system; battery powered tag; circular polarization modulated data; circular polarization modulation; coding; demodulation complexity; modulation scheme; multipath propagation; polarization inversion; power consumption; transmission errors; Batteries; Decoding; Demodulation; Electromagnetic wave polarization; Microwave technology; Modulation coding; Radio frequency; Signal processing; Switches; Tagging;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 1999 IEEE MTT-S International

Conference_Location

Anaheim, CA, USA

Print_ISBN

0-7803-5135-5

Type

conf

DOI

10.1109/MWSYM.1999.780274

Filename

780274